Annelie Hedström
Luleå University of Technology
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Publication
Featured researches published by Annelie Hedström.
Urban Water Journal | 2014
Annicka Cettner; Richard Ashley; Annelie Hedström; Maria Viklander
The traditional use of piped systems for stormwater management is increasingly criticized as being ‘unsustainable’. These systems are part of the water domain where much research has focused on sustainable development indicators to support decision-makers in selecting systems that are more sustainable. However, the interest in sustainable development indicators is low. This paper identifies conditions to engage the practitioners to inform their actions in regard to sustainable stormwater management. Empirical evidence has been obtained from interviews with water professionals from Swedish municipalities. The environmental-technical discourse of sustainable stormwater development is a strong barrier in the change process, to the neglect of the social aspects. In the interviews, reframing the discourse was possible in visions of future sustainable stormwater systems embracing green infrastructure. In action, primary conditions can support sustainable pathways in realizing this vision. The paper suggests further incentives for increased implementation of non-structural measures by developing the identified conditions.
Journal of Environmental Management | 2015
Oleksandr Panasiuk; Annelie Hedström; Jiri Marsalek; Richard Ashley; Maria Viklander
Even in separate sewer systems, wastewater may find its way into the receiving waters through stormwater sewers. The main reasons for this are cross-connections, illicit connections, overflows and leakages through broken sewers. Such discharges may affect receiving water quality and increase risks to public health and aquatic organisms. Detecting wastewater contamination and locating its points of ingress into storm sewer systems can be a challenging task, which should be addressed using proper methods and indicator parameters. A number of detection methods have already been proposed in this area, yet there is a lack of a general overview of such methods. This literature review summarizes and evaluates the methods used for detecting wastewater in stormwater, including those recently developed. The advantages, weaknesses and limitations of individual methods are discussed. It is concluded that while no single method can as yet produce results in a precise, fast and inexpensive way, the use of human waste specific chemical and microbiological markers, and their innovative sampling, offer the way forward. Guidance for selecting the most effective combinations of detection methods, under specific conditions, is also provided.
Transport in Porous Media | 2013
Amir Jourak; Vilnis Frishfelds; J. Gunnar I. Hellström; T. Staffan Lundström; Inga Herrmann; Annelie Hedström
The effects of particle-size distribution on the longitudinal dispersion coefficient (
Environmental Technology | 2006
Annelie Hedström
Journal of Environmental Management | 2015
Jonathan Mattsson; Annelie Hedström; Richard Ashley; Maria Viklander
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Journal of Environmental Engineering | 2014
Jonathan Mattsson; Annelie Hedström; Maria Viklander; Godecke-Tobias Blecken
PLOS ONE | 2013
Inga Herrmann; Amir Jourak; Annelie Hedström; T. Staffan Lundström; Maria Viklander
DL) in packed beds of spherical particles are studied by simulating a tracer column experiment. The packed-bed models consist of uniform and different-sized spherical particles with a ratio of maximum to minimum particle diameter in the range of 1–4. The modified version of Euclidian Voronoi diagrams is used to discretize the system of particles into cells that each contains one sphere. The local flow distribution is derived with the use of Laurent series. The flow pattern at low particle Reynolds number is then obtained by minimization of dissipation rate of energy for the dual stream function. The value of
Journal of Environmental Management | 2014
Annicka Cettner; Richard Ashley; Annelie Hedström; Maria Viklander
Journal of Contaminant Hydrology | 2013
Inga Herrmann; Amir Jourak; Jon Petter Gustafsson; Annelie Hedström; T. Staffan Lundström; Maria Viklander
D_{\mathrm{L}}
Environmental Technology | 2012
Inga Herrmann; Amir Jourak; T. Staffan Lundström; Annelie Hedström; Maria Viklander